CVE-2018-20748
Fixed in a distro release EPSS 3%
LibVNC before 0.9.12 contains multiple heap out-of-bounds write vulnerabilities in libvncclient/rfbproto.c. The fix for CVE-2018-20019 was incomplete.
Products: libvnc_project libvncserver, debian_linux, canonical ubuntu_linux, siemens simatic_itc1500_firmware, siemens simatic_itc1500_pro_firmware, siemens simatic_itc1900_firmware, siemens simatic_itc1900_pro_firmware, siemens simatic_itc2200_firmware, siemens simatic_itc2200_pro_firmware
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | libvncserver | 0.9.11+dfsg-1.3 |
| Debian 12 | veyon | 4.1.7+repack1-1 |
| Debian 13 | libvncserver | 0.9.11+dfsg-1.3 |
| Debian 13 | veyon | 4.1.7+repack1-1 |
| Debian 14 | libvncserver | 0.9.11+dfsg-1.3 |
| Debian 8 | italc | 1:2.0.2+dfsg1-2+deb8u1 |
| Debian 8 | libvncserver | 0.9.9+dfsg2-6.1+deb8u5 |
| SUSE Enterprise Storage 4 | LibVNCServer | 0.9.9-17.11.1 |
| SUSE Linux Enterprise Module for Package Hub 15 | LibVNCServer | 0.9.10-4.6.1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | LibVNCServer | 0.9.1-160.9.1 |
| SUSE Linux Enterprise Server 11 SP4 | LibVNCServer | 0.9.1-160.9.1 |
| SUSE Linux Enterprise Server 12 SP1-LTSS | LibVNCServer | 0.9.9-17.11.1 |
| SUSE Linux Enterprise Server 12 SP2-BCL | LibVNCServer | 0.9.9-17.11.1 |
| SUSE Linux Enterprise Server 12 SP2-LTSS | LibVNCServer | 0.9.9-17.11.1 |
| SUSE Linux Enterprise Server 12 SP3 | LibVNCServer | 0.9.9-17.11.1 |
| SUSE Linux Enterprise Server 12 SP4 | LibVNCServer | 0.9.9-17.11.1 |
| SUSE Linux Enterprise Server 12-LTSS | LibVNCServer | 0.9.9-17.11.1 |
| SUSE Linux Enterprise Server for SAP Applications 11 SP4 | LibVNCServer | 0.9.1-160.9.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP1 | LibVNCServer | 0.9.9-17.11.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | LibVNCServer | 0.9.9-17.11.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | LibVNCServer | 0.9.9-17.11.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | LibVNCServer | 0.9.9-17.11.1 |
| SUSE Linux Enterprise Software Development Kit 11 SP4 | LibVNCServer | 0.9.1-160.9.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | LibVNCServer | 0.9.9-17.11.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | LibVNCServer | 0.9.9-17.11.1 |
| SUSE Linux Enterprise Workstation Extension 15 | LibVNCServer | 0.9.10-4.6.1 |
| SUSE OpenStack Cloud 7 | LibVNCServer | 0.9.9-17.11.1 |
| Ubuntu 14.04 LTS | libvncserver | 0.9.9+dfsg-1ubuntu1.4 |
| Ubuntu 16.04 LTS | italc | 1:2.0.2+dfsg1-4ubuntu0.1 |
| Ubuntu 16.04 LTS | libvncserver | 0.9.10+dfsg-3ubuntu0.16.04.3 |
| Ubuntu 16.04 LTS | tightvnc | no fix |
| Ubuntu 18.04 LTS | italc | 1:3.0.3+dfsg1-3ubuntu0.1 |
| Ubuntu 18.04 LTS | libvncserver | 0.9.11+dfsg-1ubuntu1.1 |
| Ubuntu 18.04 LTS | tightvnc | no fix |
| Ubuntu 20.04 LTS | tightvnc | no fix |
| Ubuntu 22.04 LTS | tightvnc | no fix |
| Ubuntu 24.04 LTS | tightvnc | no fix |
| Ubuntu 25.10 | tightvnc | no fix |
| Ubuntu 26.04 LTS | tightvnc | no fix |
| Ubuntu 26.10 | tightvnc | no fix |
| Ubuntu Pro 14.04 LTS | tightvnc | 1.3.9-6.5+deb8u1build0.14.04.1~esm1 |
| openSUSE Leap 15.0 | LibVNCServer | 0.9.10-lp150.3.6.1 |